3 way valve with steel body and stailess steel internal parts. 3F.. series valves are used to control fl uids belonging to the group showed in the table in accordance to article 9 of 97/23/CE (PED) directive, in air-conditioning, thermoventilation and heating plants and in industrial processes; therefore, they cannot be used as safety valves. They consist in a 3-way valve body DN25÷125 to be assembled on electricalbidirectional actuator MVH or MVE series.